Pneumatic conveyer for cotton and similar materials



Feb. 10. 1925.

J. L. RUSHTON PNEUMATIC CONVEYER FOR COTTON AND SIMILAR MATERIALS FiledSept..5, 192.

Patented Feb. 10, 1925.

- UNITED STATES Application filed September To all whom it may concern:

Be it known that I, JAMES LEVER RUSH- TON, a subject of the Kin of GreatBritain, residing at Kay Street Works, Bolton, in the county ofLancaster, England, have invented new and useful Improvements inPneumatic Conveyors for Cotton and Similar Materials, of which thefollowing is a specification.

The invention relates to improvements in or relating to pneumaticconveyers for cotton and similar materials.

In pneumatic conveyers the cotton or the like is usually sucked througha pipe or tube to its destination by means of a fan and in practice itis found that foreign matter such as nails, rivets, binders or the likeare car ried with the material under treatment and where the cotton orthe like is destined to pass into a machine for treating the cotton orthe like serious damage may be caused to said machine by reason of thepresence of said foreign matter.

Now the object of the present invention is to provide a penumaticconveyer for fibrous materials such as cotton with means whereby anyforeign matter will be trapped and prevented from passing out of theconveyer into a machine or otherwise.

In the accompanying drawings- Figure 1 is a section of a portion of apneumatic conveyer tube constructed ac cording to the present invention.

Figure 2 is a side view thereof and Figure 3 is an end view thereof.

Referring to the drawings, the conveyor tube is interrupted at oneportion thereof and is preferably provided at said interrupted portionwith a flat bottom 3, whereby an outlet opening t is formed in the wallof the tube, one wall of said outlet opening forming a lip or bladeextending into the tube in a direction opposed to the normal directionof travel of material through said tube. Attached to the tube in suchposition as to enclose the outlet opening 4: is a box 2 having aninclined bottom 2, the highest portion of which engages the underside ofthe end '5 of the flat bottom portion 3.

From the foregoing it will be seen that when material under treatment,such as cotton, is passed through the conveyer tube,

PATENT OFFICE.

JAMES LEVER RUSHTON, OF BOLTON, ENGLAND.

PNEUMATIC CONVEYER FOR COTTON AND SIMILAR MATERIALS.

5, 1923. Serial No. 660,986.

any foreign matter that is heavier than cot-ton will sink to the bottomof the tube and will travel along the Hat portion 3 until it reaches theopening 4. Its momentum will carry it through said opening until itreaches the point 5, whereupon, owing to the inclination of the bottom 2of the box, such foreign matter will be trapped,

so that it cannot return to the conveyer tube.

The box 2 may be provided with a sliding or other door 6 through whichthe foreign matter trapped in the box 2 may be re moved therefrom andthe opening 4 may be provided with an adjustable slide 7 so that saidopening may be regulated according to the class of material passingthrough the apparatus which may be regulated as desired while thedetails of construction of the device may be modified without departingfrom the principle of the invention.

What I claim as my invention and desire to secure by Letters Patentis 1. A conveyer tube having at one side thereof a lip extending withinthe tube in a direction opposed to the normal direction of travel ofmaterial through said tube and a lip extending outside of the tube, saidlips forming between them an outlet opening from the tube, and anormally closed box enclosing said outlet.

2. A conveyer tube having at one side thereof a lip extending within thetube in a direction opposed to the normal direction of travel ofmaterial through said tube and a lip extending outside of the tube, saidlips forming between them an outlet opening from the tube, and anormallyclosed box enclosing said outlet, said box being provided with aninclined bottom.

8. A oonveyer tube having at one side thereof a lip extending within thetube in a direction opposed to the normal direction of travel ofmaterial through said tube and a lip extending outside of the tube, saidlips forming between them an outlet opening from the tube, a normallyclosed box enclosing said outlet, and a slidable member for adjustingthe width of said outlet opening.

I11 testimony whereof I have signed my name to this specification.

JAMES LEVER RUSI-ITON.

